40504545 has 24 divisors (see below), whose sum is σ = 70754112. Its totient is φ = 21434400.

The previous prime is 40504543. The next prime is 40504559. The reversal of 40504545 is 54540504.

It is not a de Polignac number, because 40504545 - 2¹ = 40504543 is a prime.

40504545 is a modest number, since divided by 4545 gives 4050 as remainder.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40504543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2460 + ... + 9330.

It is an arithmetic number, because the mean of its divisors is an integer number (2948088).

Almost surely, 2^40504545 is an apocalyptic number.

40504545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40504545 is a deficient number, since it is larger than the sum of its proper divisors (30249567).

40504545 is a wasteful number, since it uses less digits than its factorization.

40504545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7013 (or 7010 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 40504545 is about 6364.3181095857. The cubic root of 40504545 is about 343.4271185231.

The spelling of 40504545 in words is "forty million, five hundred four thousand, five hundred forty-five".